RLI Corp.
US ˙ NYSE ˙ US7496071074

SecurityRLI / RLI Corp.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,920,823 shares
Latest Disclosed Value $ 109,566,633
Dimensional Fund Advisors Lp reports 1.12% increase in ownership of RLI / RLI Corp.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,920,823 shares of RLI Corp. (US:RLI) valued at $109,563,744 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,899,524 shares of RLI Corp.. This represents a change in shares of 1.12% during the quarter. The current value of the position is $100,612,709 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F RLI COM 749607107 1,920,823 21,299 1.12 109,567 -9.85 0.0049
2026-02-12 2025-12-31 13F RLI COM 749607107 1,899,524 112,541 6.30 121,536 4.29 0.0255
2025-11-12 2025-09-30 13F RLI COM 749607107 1,786,983 -2,503 -0.14 116,540 -9.82 0.0250
2025-08-12 2025-06-30 13F RLI COM 749607107 1,789,486 -72,498 -3.89 129,233 -13.60 0.0299
2025-05-13 2025-03-31 13F RLI COM 749607107 1,861,984 920,799 97.83 149,569 -3.59 0.0372
2025-02-13 2024-12-31 13F RLI COM 749607107 941,185 7,609 0.82 155,136 7.23 0.0373
2024-11-07 2024-09-30 13F RLI COM 749607107 933,576 2,122 0.23 144,683 10.41 0.0351
2024-08-09 2024-06-30 13F RLI COM 749607107 931,454 24,125 2.66 131,045 -2.72 0.0342
2024-05-10 2024-03-31 13F RLI COM 749607107 907,329 -1,213 -0.13 134,711 11.38 0.0365
2024-02-07 2023-12-31 13F RLI COM 749607107 908,542 -6,076 -0.66 120,944 -2.69 0.0353
2023-11-09 2023-09-30 13F RLI COM 749607107 914,618 35,388 4.02 124,293 3.59 0.0408
2023-08-09 2023-06-30 13F RLI COM 749607107 879,230 -1,104 -0.13 119,988 2.55 0.0382
2023-05-12 2023-03-31 13F RLI COM 749607107 880,334 -34,835 -3.81 117,006 97,405.00 0.0394
2023-02-09 2022-12-31 13F RLI COM 749607107 915,169 13,829 1.53 120 -99.87 0.0355
2022-11-10 2022-09-30 13F RLI COM 749607107 901,340 5,027 0.56 92,283 -11.69 0.0354
2022-08-12 2022-06-30 13F RLI COM 749607107 896,313 3,678 0.41 104,495 5.81 0.0375
2022-05-13 2022-03-31 13F RLI COM 749607107 892,635 12,125 1.38 98,756 0.05 0.0304
2022-02-09 2021-12-31 13F RLI COM 749607107 880,510 -3,151 -0.36 98,705 11.39 0.0298
2021-11-12 2021-09-30 13F RLI COM 749607107 883,661 5,354 0.61 88,609 -3.54 0.0285
2021-08-12 2021-06-30 13F RLI COM 749607107 878,307 -5,526 -0.63 91,861 -6.85 0.0291
2021-05-14 2021-03-31 13F RLI COM 749607107 883,833 -52,312 -5.59 98,611 1.14 0.0326
2021-03-08 2020-12-31 13F/A-2 RLI COM 749607107 936,145 -25,936 -2.70 97,498 21.03 0.0352
2021-02-11 2020-12-31 13F RLI COM 749607107 936,145 -25,936 97,498 35,211.0953
2020-11-12 2020-09-30 13F RLI COM 749607107 962,081 -26,046 -2.64 80,555 -0.70 0.0342
2020-08-13 2020-06-30 13F RLI COM 749607107 988,127 -27,015 -2.66 81,123 -9.12 0.0357
2020-05-14 2020-03-31 13F RLI COM 749607107 1,015,142 -983 -0.10 89,265 -2.41 0.0465
2020-02-14 2019-12-31 13F RLI COM 749607107 1,016,125 -41,233 -3.90 91,472 -6.89 0.0333
2019-11-12 2019-09-30 13F RLI COM 749607107 1,057,358 2,765 0.26 98,239 8.68 0.0382
2019-08-13 2019-06-30 13F RLI COM 749607107 1,054,593 -309 -0.03 90,389 19.42 0.0351
2019-08-12 2019-03-31 13F/A-2 RLI COM 749607107 1,054,902 -4,166 -0.39 75,689 3.59 0.0301
2019-05-10 2019-03-31 13F RLI COM 749607107 1,054,902 -4,166 75,689
2019-02-26 2018-12-31 13F/A-1 RLI COM 749607107 1,059,068 10,072 0.96 73,064 -11.36 0.0331
2019-02-13 2018-12-31 13F RLI COM 749607107 1,059,068 10,072 73,064
2018-11-13 2018-09-30 13F RLI COM 749607107 1,048,996 -719 -0.07 82,429 18.64 0.0314
2018-08-10 2018-06-30 13F RLI COM 749607107 1,049,715 -46,317 -4.23 69,481 0.00 0.0277
2018-05-11 2018-03-31 13F RLI COM 749607107 1,096,032 16,396 1.52 69,478 6.09 0.0290
2018-02-12 2017-12-31 13F RLI COM 749607107 1,079,636 5,861 0.55 65,491 6.33 0.0271
2017-11-13 2017-09-30 13F RLI COM 749607107 1,073,775 33,357 3.21 61,593 8.38 0.0269
2017-08-11 2017-06-30 13F RLI COM 749607107 1,040,418 -1,898 -0.18 56,829 -9.16 0.0262
2017-05-12 2017-03-31 13F RLI COM 749607107 1,042,316 -28,344 -2.65 62,559 -7.44 0.0299
2017-02-09 2016-12-31 13F RLI COM 749607107 1,070,660 1,548 0.14 67,591 -7.52 0.0338
2016-11-10 2016-09-30 13F RLI COM 749607107 1,069,112 -40,057 -3.61 73,084 -4.20 0.0395
2016-08-09 2016-06-30 13F RLI COM 749607107 1,109,169 -42,642 -3.70 76,285 -0.94 0.0439
2016-05-13 2016-03-31 13F RLI COM 749607107 1,151,811 48,727 4.42 77,012 13.06 0.0461
2016-02-10 2015-12-31 13F RLI COM 749607107 1,103,084 28,163 2.62 68,117 18.38 0.0425
2015-11-13 2015-09-30 13F RLI COM 749607107 1,074,921 40,189 3.88 57,541 8.21 0.0378
2015-08-14 2015-06-30 13F RLI COM 749607107 1,034,732 19,253 1.90 53,175 -0.09 0.0326
2015-05-14 2015-03-31 13F RLI COM 749607107 1,015,479 53,500 5.56 53,221 11.99 0.0336
2015-02-06 2014-12-31 13F RLI COM 749607107 961,979 44,826 4.89 47,523 19.69 0.0312
2014-11-13 2014-09-30 13F RLI COM 749607107 917,153 28,557 3.21 39,705 -2.39 0.0281
2014-08-08 2014-06-30 13F RLI COM 749607107 888,596 50,314 6.00 40,679 9.69 0.0283
2014-05-14 2014-03-31 13F RLI COM 749607107 838,282 449,131 115.41 37,085 -2.14 0.0277
2014-02-12 2013-12-31 13F RLI COM 749607107 389,151 5,194 1.35 37,895 12.90 0.0295
2013-11-13 2013-09-30 13F RLI COM 749607107 383,957 -5,998 -1.54 33,564 12.65 0.0290
2013-08-15 2013-06-30 13F RLI COM 749607107 389,955 389,955 29,796 0.0281
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.